Saw-sharpening implement.



S. HARDY.`

SAW SHAHPENING IMPLEMENT.

APPLICATION man MAY 2, 1911.

1,262,945.. Patented Apr. 16, 1918.

wurm/Hoz man strains rari-inni onirica.

STEVEN Hanny, or NEW YORK, N.' Y.

sew-snanrniiiiive IMPL'EMENT.

Specification of Letters Patent.

Application filed May. 2, 1917. Serial No. 166,039.

To all whom it may concern.'

Be it known that I, STEvnN' HARDi, a subject of the King of Hungary, residing at New York, in the county of N ew York and State of New York, haveinvented new and useful Improvements in Saw-Sharpening Implements, of which the following is a speciiication.

This invention relates `to, implement Sharpeners, 4the invention being more. particularly related to new and useful ime vand so adjustable that itwill operate el? fectually` upon saws differing Viii Size and havingV diii'erently spaced teeth; j

A further Objectis the provision of a` device which is compact in, ferm, occupying but little space, which is simple in con# struction and cemparatively inexpeiisiveto manufacture.

With these objects and` others, in View, which will he more fully comprehended as the 4description proceeds, the invention consists in the novel construction, cpinbination andA arrangementv of parts hereinafter def scribed and illustrated in the accompanying drawings, forming apart of this specificaf tion, and in whichz-f:

Figure 1 is a perspective view of the device made in accordance with my invention.

Fig. 2 is a vertical longitudinal sectional view taken approximately in the direction indicated by line 2- 2.oi Fig. 3.

Fig. 3 is a top plan view,y illustrating the Workme rartstha handle elemente bams broken away.

"Referring: more. rertlallarly to, the aeompanvirle draWeeS/ithlllmefels 1.0' Mid ll'indcate' coperating. handle elements,

which, arepiveted at 12s@ as to enablethein .te-'heve'eiaeana @leer movements the means of a flat push spring 13, attachedgat one end preferably to the upper handle element 10,l the lower end thereof being. in slidablev engagement with the lower handle 11 near the pivoted connection 12. Y

The upper handle 10-merges into a head portion le which is vverticallybifurcated to form parallel parts 15 and 15 having a space therebetween forl the disposition rand operation. of, the working parts.

As best shown in Eig. 2, the lowerhandle element 1l merges into an arm 16 which Apro jects upwardly approximately at right-an# gles thereto through the hifurcatedy head.

Rotatably journaled in and betweenv the parallel elements 15 and 15 is a shaftv 17 having fixed thereon a gcalsector 18. In order` to impart reciprocating motion to the gear sector, when the handles are actuated, a connecting rod 19 pivotallyr connects the samey at 19 with the upper endof they arm u 16 at 20,V

Meshing with` gearsector-v 18 is a pinion y21whifchlis rotatableon a shaft 2.2, the latter .being secured in suitable projecting bracket arms=23 and 2,4. The arml 23 is preferably formed with a slot 25 at its rear end so as to be securahly. adjustableiipen thumb screw 26, threadedy intothe parallel memberl, while thecorresponding end of arm 24 is slidably maintained in a longif tudinal channel 27 pr vided the purpose l in th-e'parallel lmember 15.

Formed with the pinion 21 is al disk 278 detachably carrying an emery or, othersuitable grinding wheel 28'V havingv afbeveled periphery, 'ThusfI provide for1 the. support and operation of a grinding or'y sharpening element, thefsamebeing arrangedI for, ref ciprocal rotation by meansgof theA opening and closing movements of they handlesI 10 and 11, it being obvious that "thev` extentof the reciprocalv turns vor Vof Vthe retatioii` of the grindingvelement will depend upon., the respective sizes offthe several levers, and et' themeshingf.V gears as well.

Toy provide "rnepans,` for holding the. deu-ice rigidv with a'fsaw-.hlade 'so 'that the; 'iv-Heel 28.5 'may operate' ffififn@la`11.1J,.0i the teeth] theredfi emrleipairet leeet'ud'f #all vise-lilla I matias-sesame..ai 3.@

end into a longitudinal stri by means of the spaced-apart parallel rods 32, 33, and 34. 'lhe rod 32, representing the central one, is threaded at its outer 30', formed on the underside, of the section 30, the remote end ofthe same being threaded into a nut 35, rigidly held ina cavity provided for the` purpose in the member 15. A thumb screw 36, threaded upon the outer end of this rod, serves .to adjust the mat-Y ing section 30 relatively with respect to the handle elements. Vlhe other rods, 33 and 34, have their outer ends rigidly secured in the projection 30', their inner ends being slidable in suitable holes provided transversely in the opposed ends of a cross-piece 37, which is secured to the underneath ends of the members l5 and l5. Coil push springs 33 and 34 mounted respectively, around these rods, tend to maintain the section 30 uniformly against lateral swinging upon the rod 32.

The upper section 29 is adjustably maintained in position upon the mating-section Y Y 30 by means of thumb screws as 38. rThis section, as best illustrated in Figs. l and 3, is preferably provided in its forward facewitli a'pair of spaced openings 39 and 40, the opening 39 being in communication with a vertical triangular opening 41, which is designed for the reception of the beveled edge of the grinding wheel 28', the said opening 4l extending correspondingly through both ofthe sections 29 and 30.

' Communicating with the opening 40 is an underneath transverse opening 42 similarly 'cut in both ot the sections, and in which is seated the front beveled end of a tooth engaging-clamp 43, the rear end ot which is slidable in a suitable transverse opening provided in the cross-piece 37. A thumb screw 44C, threaded in cross-piece 37, serves to secure the engaging-clamp 43 in the position required. rlhus it will be seen that the cooperating sections 29 and 30 are adjustably supported relatively with respect to Vthe grinding wheel 23 so that by means of the manipulation of thumb screw 32, they may be extended or retracted for the engagement ,of the beveled edge of the grinding wheel 28 with the teeth of a saw as 3l.

F rom the foregoing description, taken in connection with the accompanying drawings, it is believed that the operation of my device will be obvious.` A saw as 3l may beheld in any vsuitable vise, or if n o vise is available, it may be held in the hands of, the operator.,

ln either case, the toothed end oie the saw is 55 entered between the sections, which are clamped tightly upon either side of the sawblade by means of the thumb screws as 38, the device being locked against movement longitudinally of the saw-bladeby means of the entrance between two saw teeth of the engaging-clamp 43. When clamped upon the saw-blade in this manner, the thumb screw 32 is manipulated so that the'grinding wheel 28 engages the tooth to be sharpened. The teeth of the saw-blade may thus be sharpened one after another upon the proper shifting of the device. Y

' Having thus described my invention, what I claim is l. An implement for sharpening saws comprising a pair of pivotally connected Y handles, one of which merges into spaced head members, the other merging into an angular arm extending between said head members, a gear wheel mounted-for rotation between said head members, a rod pivotally connecting said arm with said gear wheel, a pinion rotatably supported between the head members in advance of the gear and meshing therewith, a disk wheel combined vwith the pinion, a grindingl element detachably carriedo by the disk wheel, a pair of coperating sections adapted to grip a saw-blade adjustably supported from the head members in advance of said grinding element.

2. An implement for sharpening saws comprising a pair of pivotally connected handles. one of said handles merging into a vertically channeled head, and the other terminatingin an angularY arm extending` through saidchanneled head, a gear wheel mounted for rotation in said channeled head, a rod pivotallv connecting said arm with said gear wheel, a "pinion rotatably supported by said channeled head in advance of said gear and meshing therewith, a disk wheel combined with the pinion, a grinding element detachably carriedy by the ,disk wheel, a pair of cooperating horizontal saw sections adjustably supported from said head in advance of said grinding element and means l for adjusting said lhorizontal saw sections vertically with respect to each other.

3. An implement for'sharpening saws com-Y prising a pair of handles pivotally connected at one end, the upper handle merging into an extended verticallychanneled head, the lower handle terminating in an angular arm upwardly projecting through said channeled head, means combined with said handles to table therewith, a grinding element detachwith said jaw sectionsy for clamping and ably carried by said disk Wheel, a pair of comaintaining the saw blade against longioperating horizontal jaw sections adapted vtulinal movement. 10 to grasp the blade of a saw adjustably sup- In testimony whereof I have signed my ported from said head in advance of said name to this specification.

grinding element, and means adjustably secured in the head element and coperating Y STEVE HARDY.

Oopies ot this patent may be obtained for ve centeeach, by addressing the "commissioner of Patente.

Wlehinxtnm D. c. 

